rileypeterson’s gists

rileypeterson / mf_balancer.py

Last active June 18, 2024 22:26

Code to rebalance a portfolio of assets with the limitations of buying a minimum dollar amount and not being able to sell. Not sure if this will always work, but seems to do pretty good for the most part. It was crazy to me I couldn't find something like this online.

	import numpy as np
	from scipy.optimize import minimize


	def no_sell_reallocate(x, t, desired_spend=None, names=None):
	"""
	Optimally (I hope so) realign the current values of investments x to some
	portfolio target allocation t, with the limitation that you cannot reduce the
	amount of any current investment (i.e. you can't sell).

rileypeterson / pandas defaults

Last active February 23, 2025 21:48

pandas defaults

	# 1. pip show pandas
	# 2. nano <Location path>/pandas/__init__.py
	# Paste the following at the bottom of the file
	set_option("display.max_columns", None)
	set_option("display.width", 100000)
	set_option("display.min_rows", 20)
	set_option("display.max_rows", 20)

	# Loads better pandas defaults everytime

rileypeterson / django_annotate_date_time_convert_tz.py

Created October 8, 2022 22:40

Convert timezone in django annotate with date and time fields

	# Insane Django operation I had to do
	# Inspired by: https://stackoverflow.com/a/70552577/8927098


	# Need to filter for a date, but source table date is in UTC and it's separated into date and time fields
	# Example:
	# Date to find (America/New_York): 2005-09-08
	# Date in table (UTC): 2005-09-09
	# Time in table (UTC): 01:07:00

rileypeterson / ssh_utils.md

Created June 29, 2022 03:35 — forked from nitred/ssh_utils.md

SSH Tunneling (port forwarding + reverse port forwarding + SOCK5)

About

SSH tunneling and port forwarding snippets and utils

	import PyPDF2
	from PyPDF2 import PdfFileReader, PdfFileWriter
	from PyPDF2.generic import StreamObject, DecodedStreamObject
	from PyPDF2 import filters

	# You change the phrases/text you want redacted and the file paths:
	phrases = ["123-45-6789", "YOUR_SECRET_PASSWORD", "YOUR_SECRET_ID"]
	read_path = "/path/to/yourpdf.pdf"
	write_path = "/path/to/yourpdf-redacted.pdf"

rileypeterson / keras_sequence.py

Last active February 23, 2021 08:49

Work in progress

	# Keras Sequence
	import os
	import tempfile
	from itertools import product
	import numpy as np
	from random import shuffle
	import time
	import sys

	f_rows = 30000

rileypeterson / tmux_remote_execution.sh

Created February 16, 2021 08:37

Execute remote scripts via ssh and tmux (detached). This is much more convenient than nohup, etc. and it lets you actually re-attach to session if you want to ssh in and check on it :)

	ssh [email protected] -t 'tmux new-session -d "sleep 20"'

	# or change "sleep 20" --> "python my_time_consuming_python_script.py"

rileypeterson / recurse.py

Created August 21, 2020 03:49

Left truncatable primes

	import math

	def pt(x):
	x = int(x)
	for i in range(2, math.floor(math.sqrt(x))):
	if x % i == 0:
	return False
	return True

	def checker(left=None, res=None):

rileypeterson / setup.md

Created June 30, 2020 20:16

Backtrader setup

From terminal run jupyter qtconsole & # Start ipython terminal

In python: %matplotlib qt5

Then when using cerebro.plot make sure iplot kwarg is False (i.e. cerebro.plot(iplot=False)).

rileypeterson / Image to b64 string

Created June 19, 2020 21:06

Insert an image into html img tag

	from io import BytesIO
	import matplotlib.pyplot as plt
	import base64
	b = BytesIO()
	plt.plot([1,2,3])
	plt.savefig(b)
	b64_img_str = base64.encodebytes(b.getvalue()).decode()
	# In js
	# $("#graph1").attr("src", "data:image/png;base64, ".concat(b64_img_str));

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